From ecf6a18309d5022fc5856dc07e9238bb46acb75c Mon Sep 17 00:00:00 2001
From: uwolfer <uwolfer@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 5 Dec 2007 22:40:13 +0000
Subject: [PATCH] Handle VNC framebuffer size changes correctly. Such changes
 are for example used by the QEMU VNC output

git-svn-id: svn://anonsvn.kde.org/home/kde/trunk/KDE/kdenetwork@745303 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 krdc/vnc/vncview.cpp | 18 +++++++++++-------
 krdc/vnc/vncview.h   |  1 +
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/krdc/vnc/vncview.cpp b/krdc/vnc/vncview.cpp
index bdf322bb5..123813e4b 100644
--- a/krdc/vnc/vncview.cpp
+++ b/krdc/vnc/vncview.cpp
@@ -189,6 +189,8 @@ void VncView::updateImage(int x, int y, int w, int h)
     m_w = w;
     m_h = h;
 
+    m_frame = vncThread.image();
+
     if (!m_initDone) {
         setAttribute(Qt::WA_StaticContents);
         setAttribute(Qt::WA_OpaquePaintEvent);
@@ -198,10 +200,9 @@ void VncView::updateImage(int x, int y, int w, int h)
 
         setMouseTracking(true); // get mouse events even when there is no mousebutton pressed
         setFocusPolicy(Qt::WheelFocus);
-        QImage frame = vncThread.image();
-        setFixedSize(frame.width(), frame.height());
+        setFixedSize(m_frame.width(), m_frame.height());
         setStatus(Connected);
-        emit changeSize(frame.width(), frame.height());
+        emit changeSize(m_frame.width(), m_frame.height());
         emit connected();
         m_initDone = true;
 
@@ -210,6 +211,11 @@ void VncView::updateImage(int x, int y, int w, int h)
         }
     }
 
+    if ((y == 0 && x == 0) && (m_frame.size() != size())) {
+        setFixedSize(m_frame.width(), m_frame.height());
+        emit changeSize(m_frame.width(), m_frame.height());
+    }
+
     m_repaint = true;
     repaint(x, y, w, h);
     m_repaint = false;
@@ -231,14 +237,12 @@ void VncView::paintEvent(QPaintEvent *event)
 
     QPainter painter(this);
 
-
     if (m_repaint) {
 //         kDebug(5011) << "normal repaint";
-        painter.drawImage(QRect(m_x, m_y, m_w, m_h), vncThread.image(m_x, m_y, m_w, m_h));
+        painter.drawImage(QRect(m_x, m_y, m_w, m_h), m_frame.copy(m_x, m_y, m_w, m_h));
     } else {
 //         kDebug(5011) << "resize repaint";
-        QImage frame = vncThread.image();
-        painter.drawImage(frame.rect(), frame);
+        painter.drawImage(m_frame.rect(), m_frame);
     }
 
     QWidget::paintEvent(event);
diff --git a/krdc/vnc/vncview.h b/krdc/vnc/vncview.h
index 22442ff56..08838266b 100644
--- a/krdc/vnc/vncview.h
+++ b/krdc/vnc/vncview.h
@@ -74,6 +74,7 @@ private:
     bool m_firstPasswordTry;
     bool m_dontSendClipboard;
     VncHostPreferences *m_hostPreferences;
+    QImage m_frame;
 
 private slots:
     void updateImage(int x, int y, int w, int h);
-- 
2.11.4.GIT